EP1032481B1 - Dispositif verseur pour cuves metallurgiques et procede pour reguler la quantite d'ecoulement - Google Patents

Dispositif verseur pour cuves metallurgiques et procede pour reguler la quantite d'ecoulement Download PDF

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Publication number
EP1032481B1
EP1032481B1 EP98958803A EP98958803A EP1032481B1 EP 1032481 B1 EP1032481 B1 EP 1032481B1 EP 98958803 A EP98958803 A EP 98958803A EP 98958803 A EP98958803 A EP 98958803A EP 1032481 B1 EP1032481 B1 EP 1032481B1
Authority
EP
European Patent Office
Prior art keywords
filter
melt
sliding plates
pouring device
pouring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98958803A
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German (de)
English (en)
Other versions
EP1032481A1 (fr
Inventor
Ulrich Horbach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Demag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1032481A1 publication Critical patent/EP1032481A1/fr
Application granted granted Critical
Publication of EP1032481B1 publication Critical patent/EP1032481B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
    • B22D43/001—Retaining slag during pouring molten metal
    • B22D43/004—Retaining slag during pouring molten metal by using filtering means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/24—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings characterised by a rectilinearly movable plate

Definitions

  • the invention relates to a pouring device for metallurgical vessels, in particular for molten steel, with adjustable and in series under a vessel opening slide-out slide plates into which filters can be inserted and one into one Mold protruding dip tube and a method for controlling the Outflow of a melt.
  • the spout closure known from this document is said to be a quick and reliable one Allow clogged filters to be replaced during casting.
  • the disadvantage of this device is that the filter slowly clogs up during the casting operation and the resistance in the pouring opening increases continuously.
  • the slow clogging causes an increase in the pressure loss that the filter exerts. This increase must be compensated for by opening an additional control valve, which is in a partially closed position when the filter is completely free.
  • This device also controls the level of the mold level. The gradual clogging of the filter further increases the filter effect, so that the degree of purity of the melt is relatively poor when the filter is completely free, but the degree of purity of the melt is relatively good when the filter is almost completely added. A constant degree of purity of the melt is therefore not possible over a longer casting time.
  • a pouring device for metallurgical vessels is known from JP05318062, in which several plates are provided below the pouring opening, one of these plates is designed as a slide plate and serves to close the outlet opening. A other plate is rotatably arranged and in this are several filters - a closed one Forming filter ring - used. A diving spout follows the pouring device.
  • the invention has set itself the goal of a pouring device for metallurgical vessels to create, in which the flowing liquid metal is constant with uniform Flow conditions in the dip tube is filtered.
  • the immersion tube is closed by a slide plate, which has a filter part which is displaceable transversely to the pouring direction and which keeps the free passage cross section in the immersion nozzle constant.
  • This is the flow rate the melt flowing through the immersion pouring tube is detected, which is also a measure of the Clogging the filter openings represents, and the slide plates are used in a suitable manner postponed.
  • slide plates are used, which have a filter part in the casting direction has arranged openings, and have at least one full-walled plate part.
  • actuators are provided with which the slide plates in the conveying direction (x direction), as well as in the same plane, but perpendicular to it (i.e. in the y direction) are movable. These actuators are connected via control devices with measuring elements with which the Flow through the dip tube is detectable.
  • the free cross-section can be increased as desired during the casting operation or zoom out.
  • the device according to the invention enables a constant operating sequence any length of time since the filter segments can be replaced without to influence the operational process.
  • FIG. 1 An example of the invention is shown in FIG. 1.
  • Figure 1 shows a distributor 11, not shown, the one Has distributor pouring stone 12 with a pouring channel 13.
  • the distributor nozzle 11 is with an upper guide plate 21 and one in the Figure not shown lower guide plate 22 connected.
  • the individual slide plates have two solid walls in the present illustration Plate parts 24, which are arranged on both sides of a filter part 25.
  • openings 27 are provided, which are still in the left part of the figure are completely open and at least in the right part of the figure as filter part 26 are partially clogged.
  • the slide plates 23 act with actuators 31 in the conveying direction (x direction) and actuators 32 acting transversely to the conveying direction (i.e. in the y direction).
  • the actuators 31 and 32 are connected to a control device 33, which with measuring elements 34 for flow rate detection and with measuring elements 35 for Level measurement are connected.
  • the distributor pouring stone 12 has a pouring channel 13, which is below the Slide plates as immersion tube 28 continues, which in a no further shown mold 41 protrudes.
  • the two actuators 31 and 32 can - as indicated - the Move slide plates 23.
  • a portion of the filter part 26 and a Part of the full-walled plate part 24 are located.
  • the actuator 32 is actuated. This then moves the slide plates 23 in the y direction such that more filter area is released, i.e. the section of the full-walled plate part 24 under the Pouring tube is reduced.
  • the Actuators moved the slide plates in the x and y directions until again the above-described initial state is established or another desired one Position has been set. It can be seen that of course a completely close the outlet opening of the pouring tube in this way is possible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Continuous Casting (AREA)
  • Basic Packing Technique (AREA)

Claims (7)

  1. Dispositif de coulée pour des récipients métallurgiques, en particulier pour des matières en fusion d'acier, comportant des plaques à coulisse pouvant être mises en place en série l'une derrière l'autre sous une ouverture de récipient et à nouveau retirées, dans lesquelles sont agencés des filtres, et un tube plongeur (28) pénétrant dans une coquille, les plaques à coulisse (23) présentant une partie de filtre (25) munie d'ouvertures (27) agencées dans la direction de coulée et au moins une partie de plaque (24) à paroi pleine, et un actionneur (31) étant prévu grâce auquel les plaques à coulisse (23) peuvent être déplacées dans la direction de transport (direction x),
    caractérisé en ce qu'un autre actionneur (32) est prévu, grâce auquel les plaques à coulisse (23) peuvent être déplacées, de façon supplémentaire, dans le même plan mais perpendiculairement à la direction de transport (c'est-à-dire dans la direction y) et en ce que les actionneurs (31, 32) sont reliés, par l'intermédiaire d'un dispositif de réglage (33), à des éléments de mesure (34) grâce auxquels le passage à travers le tube de coulée plongeur (28) peut être détecté.
  2. Dispositif de coulée selon la revendication 1,
    caractérisé en ce que les actionneurs (31, 32) sont reliés, par l'intermédiaire d'un dispositif de réglage (33), à des éléments de mesure (35) qui affichent le niveau de la matière en fusion dans la coquille (41) disposée en aval du tube de coulée plongeur (28).
  3. Dispositif de coulée selon la revendication 1,
    caractérisé en ce que la surface (F) de la partie de filtre (25), par rapport à la surface (P) de la partie de plaque à paroi pleine (24), présente un rapport de surface de F/P = 0,3 à 0,7.
  4. Dispositif de coulée selon la revendication 3,
    caractérisé en ce que la partie de filtre (25) présente des ouvertures (27), ayant un diamètre (d) de valeur d = 0,2 à 1,0 mm.
  5. Dispositif de coulée selon la revendication 3,
    caractérisé en ce que les ouvertures (27) sont réalisées sous forme de fente ayant un rapport longueur/largeur de l/b = 5/1 à 8/1.
  6. Procédé pour commander la quantité d'écoulement d'une matière en fusion, en particulier une matière en fusion d'acier, qui s'écoule d'un récipient métallurgique par l'intermédiaire d'un tube plongeur, qui peut être fermé par des plaques à coulisse selon la revendication 1,
    caractérisé par les étapes suivantes :
    la matière en fusion s'écoulant par le tube de coulée plongeur est guidée à travers un filtre,
    simultanément, la quantité de passage de la matière en fusion s'écoulant à travers le tube de coulée plongeur est détectée, et
    la section transversale libre du filtre est réglée par déplacement des plaques à coulisse dans la direction de transport (direction x) et perpendiculairement à celle-ci (direction y), de façon que la quantité de passage de la matière en fusion demeure constante.
  7. Procédé selon la revendication 6,
    caractérisé en ce que le filtre représente une partie d'une plaque à coulisse présentant de même des parties de plaque à paroi pleine et est déplacé dans la direction de transport (direction x) uniquement lorsque la largeur totale de la partie de filtre de la plaque à coulisse, perpendiculairement à la direction de transport, a été exploitée.
EP98958803A 1997-11-17 1998-09-25 Dispositif verseur pour cuves metallurgiques et procede pour reguler la quantite d'ecoulement Expired - Lifetime EP1032481B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19753026 1997-11-17
DE19753026A DE19753026C1 (de) 1997-11-17 1997-11-17 Ausgießeinrichtung für metallurgische Gefäße
PCT/DE1998/002931 WO1999025513A1 (fr) 1997-11-17 1998-09-25 Dispositif verseur pour cuves metallurgiques et procede pour reguler la quantite d'ecoulement

Publications (2)

Publication Number Publication Date
EP1032481A1 EP1032481A1 (fr) 2000-09-06
EP1032481B1 true EP1032481B1 (fr) 2001-11-07

Family

ID=7850241

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98958803A Expired - Lifetime EP1032481B1 (fr) 1997-11-17 1998-09-25 Dispositif verseur pour cuves metallurgiques et procede pour reguler la quantite d'ecoulement

Country Status (9)

Country Link
US (1) US6485673B1 (fr)
EP (1) EP1032481B1 (fr)
JP (1) JP2001523578A (fr)
KR (1) KR20010031718A (fr)
AT (1) ATE208240T1 (fr)
AU (1) AU1481799A (fr)
DE (2) DE19753026C1 (fr)
ES (1) ES2163302T3 (fr)
WO (1) WO1999025513A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19918835A1 (de) * 1998-12-23 2000-07-06 Sms Demag Ag Verfahren zum Erfassen und Regeln der Füllstandshöhe des flüssigen Metalls in einer Kokille
DE102016106708B4 (de) * 2016-04-12 2019-06-13 Technische Universität Bergakademie Freiberg Stranggieß-Verfahren mit keramischen Filtern oder Filtersystemen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4077457A (en) * 1974-03-06 1978-03-07 Sumitomo Metal Industries Limited Molten metal pouring control method and apparatus for use in continuous casting equipment
JPS5182664A (fr) * 1974-12-27 1976-07-20 Kurosaki Refractories Co
JPS62142058A (ja) * 1985-12-17 1987-06-25 Sumitomo Metal Ind Ltd 溶融金属の注入装置
DE4012093C1 (fr) * 1990-04-14 1991-07-04 Didier-Werke Ag, 6200 Wiesbaden, De
JPH05318062A (ja) * 1992-05-13 1993-12-03 Sumitomo Metal Ind Ltd 連続鋳造時の介在物除去部材および装置

Also Published As

Publication number Publication date
WO1999025513A1 (fr) 1999-05-27
ATE208240T1 (de) 2001-11-15
US6485673B1 (en) 2002-11-26
DE59802098D1 (de) 2001-12-13
KR20010031718A (ko) 2001-04-16
AU1481799A (en) 1999-06-07
JP2001523578A (ja) 2001-11-27
ES2163302T3 (es) 2002-01-16
DE19753026C1 (de) 1998-12-10
EP1032481A1 (fr) 2000-09-06

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